<template>
  <div>
    <h3>这是详情页</h3>
    <button @click="goback()">回退</button>
  </div>
</template>
<script>
export default {
  data() {
    return {}
  },
  methods: {
    goback() {
      this.$router.go(-1)
    }
  }
}
</script>
